加减速流条件下棒束通道阻力特性研究

Resistance Characteristics of Rod Bundle Channel under Acceleration and Deceleration Flows

摘要: 压水反应堆的启动、停堆、事故等多种工况会使反应堆堆芯内部冷却剂产生加减速流，影响反应堆的热工水力特性。在雷诺数（Re）700

Abstract: The start-up, shutdown and accident of PWR will make the coolant flow in the reactor core accelerate and decelerate, which will affect the thermalhydraulic characteristics of the reactor. Experimental study on the resistance characteristics of the rod bundle in the Reynolds number range of 700